“The Hidden Memory” is episode twenty of season one of Farscape.
In the previous episode, “Nerve”, Crichton had recovered the necessary tissue sample for Aeryn from the secret Peacekeeper base in the Uncharted Territories, but had been captured by Scorpius. Scorpius has an interest in wormhole technology, and is probing Crichton’s mind, and has also summoned Crais.
It’s interesting that Scorpius has a high rank in the Peacekeepers, given their attitude towards inter-species relationships – that is, after all, why D’Argo’s wife was killed.
D’Argo, Zhaan and Aeryn are heading to the Peacekeeper base to rescue Crichton, and Moya is giving birth.